That means railway strike.

Pro tip: When you’re the guy giving the order to strike, make sure you catch the last train back to your headquarters in Berlin before the strike begins.
More German of the day: Dumm gelaufen. That means shit happens.
Train drivers’ strike – GDL boss Weselsky misses last train to Berlin.
Claus Weselsky has a problem: due to the train drivers’ strike, the head of the train drivers’ union (GDL) said he missed the last train to Berlin on Tuesday evening.
Courts in Frankfurt rejected the injunction issued by Deutsche Bahn against the strike action on Tuesday evening but after that, things went less well for the union leader, as the hearing lasted longer than initially expected.

